史密斯先生下周会来我们学校演讲。

___Mr. Smith will give a speech at our school next week.

这位先生今天来医院推广新产品。

The ___Mr. came to the hospital today to promote new products.

这份文件需要转换为MR格式以便自动处理。

This document needs to be converted into ___MR format for automated processing.